package com.th.servlet;

import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;

/**
 * @author ThreePure
 * @date 2022/3/12 13:43
 * @description: TODO
 * @since 1.8
 */
public class HelloServlet extends HttpServlet {

    @Override
    protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
        //1. 获取前端参数
        String method = req.getParameter("method");
        if (method.equals("add")){
            req.getSession().setAttribute("msg", "执行了add方法");

        }
        if (method.equals("delete")){
            req.getSession().setAttribute("msg", "执行了delete方法");
        }
        //2. 调用业务层

        //3. 视图转发或者重定向
        req.getRequestDispatcher("/WEB-INF/jsp/test.jsp").forward(req, resp);
    }

    @Override
    protected void doPost(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
        super.doGet(req, resp);
    }
}
